Pipe connection



Patented May 3, 1927.

UNITED STATES 1,627,219 PATENT OFFICE.

, RAYMOND R. WHITE, F DETROIT, MICHIGAN, ASSIGNOR TO WHITE SHOWERS, INC., OF DETROIT, MICHIGAN, A. CORPORATION 0F MICHIGAN.

PIPE CONNECTION.

Application fired may 5,

This invention relates to a pipe connection for a liquid distributing system or overhead irrigation system. In such an apparatus there is generall used a relatively long distributing pipe t at is provided with a series of nozzles, the said pipe being rotatably supported on a plurality of standards. Sometimes it is desirable to turn this distributing pipe about its longitudinal ax1s for the purpose of directing the water spray so that the ground will be properly irrigated. This long pipe is connected to a stationary water main by a swivelingcoupling or what I term a turning union. This enables an operator to turn to any ydesired position without loosening the connection between the supply pipe and the water main.

Another object of this invention is the provision of means lwhereby the packing ,ma efficiently seal the joint and relieve the en of the rotating distributing pipe from sealing against the packing, the joint being sealed nearthe end of the pipe and preventing any of the packing from falling into the interior of the distributing pipe, as it is quite necessary to prevent any of the packing or other foreign matter from entering the supply pipe, for this would tend to clou the nozzle openings. The construction of my l0 connection is such that the turning union is provided with a bearing in which the stationary pipe or nipple is fitted thereby allowing the turning union to rotate about this nipple without interfering with the packing that seals the joint. l In the drawings: y Fig. 1 is a perspective view of a liquid distributing s stem having my turning union installe therein.

Fig. 2 is a longitudinal sectional taken through the turning union.

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 2.

Fig. 4 is a sectional view taken on the V5 Y line 4.-4 of Fig. 2.

a designates the main supply pipe and the flow of .water from the said main to the auxiliary distribution or irrigating pipe` b is controlled by a valve c. A suitable pipe `0 connection designated as a whole by d, is

interposed between the stationary pipe secured to the lwater main, and the distributing pipe b which is adapted to be rotated about 1t longitudinal axis. A plurality of view 1924. Serial No. 711,294.

standards e are provided with suitable bearings f for supporting the rotating pipe b.

y pipe connection comprises a T which serves as a turning union. This turning union is designated g land the distributing pipe b is adapted to be screwed or otherwise secured to one end of this turning union. The other end of the turning union is much longer and'is provided with a larger bore at the end thereof and a short section of pipe or nipple h is fitted into this end of the union, the extreme end of the nipple .7a. extending into that portion of the union which has a narrower bore,'thereby rotatably supporting the T or turning unionV g. The other end of the pipe section or nipple h is permanentlyisecured to the Watner main al.

The nipple is provided 'with a circumferi ential groove 1I near the end thereof and a split spring collar j is fitted into this groove. On examining Fig. 2 it will be seen that this split collar engages the shoulder formed in the turning union by counter-boring the end of the union which provides the enlarged bore in the end thereof. This end of i the turnin union is externally threaded as at c. Pac ing m is inserted about the section l1. behind the collar j and a packing gland n is fitted into the enlarged end of the union. A packing nut o and a lock nut 10 are screwed down on the external threads of 'the union andthe packing nut rams the packing gland n against the packing, thereby squeezingithe packing between the collar and the pac in sleeve and forming an efiicient seal for t e joint.

This construction successfully seals the joint and prevents the possibility of any of the packing from escaping into the interior where it may be carried into the irrigation pipe b. The handle p is secured to the turning union, whereby the operator may rotate the union and the irrigation pipe carried thereby to any desired position.

What I claim is: In a pipe connection for a liquid distributing system, the combination of a yturning union provided at one end with means for f `securing a distributing pipe thereto and having the opposite other end externally threaded and provided with a bore which is enlarged at the end thereof, means for turning the union .together with the distributing' pipe on the longitudinal axis of the pipe, a

los

portion of the union, a packing gland fitted into the enlarged bore and envaging the packing, a packing nut screwed onto the J5 external threads carried by the union and engaging the packing gland to squeeze the l packing between the split spring collar and the gland and force the packing against the side Wallsof the enlarged portion of the 20 turning union for sealinv the joint.

In testimony whereofo I have affixed my signature. Y

RAYMOND R. WHITE. 

